It provides a powerfull User Points, medals and ranking application component for Joomla and expandable with simple yet powerfull API. AltaUserPoints provides a method for users to accumulate points for performing certain actions on your website such as posting articles, inviting new users, invite a friend to read an article, etc... It also provides an API that allows developers to easily add other actions. AltaUserPoints is a must have app in providing an incentive for users to participate in the website, and be more active.
If you have used one of my free extensions and feel a bit grateful, you can always buy me a cup of coffee.. it costs only 5 bucks, and it will help me concentrate when I'm developing more stuff for you ;)